Catalog No. size PriceQuantity
M6596-2 2mg solid $95
M6596-10 10mg solid $406


NIBR189 is a potent and selective antagonist of the G protein-coupled receptor identified as EBI2 (GPR183) (IC50 values are 11 and 15 nM for human and mouse EBI2 receptors, respectively). This compound exhibits selectivity for EBI2 over other receptors, enzymes and transporters. In addition, NIBR189 blocks oxysterol-induced migration of U937 monocyte cells.

Product information

CAS Number: 1599432-08-2

Molecular Weight: 429.31

Formula: C21H21BrN2O3



NIBR 189


Chemical Name: (E)-3-(4-bromophenyl)-1-(4-(4-methoxybenzoyl)piperazin-1-yl)prop-2-en-1-one

Smiles: COC1C=CC(=CC=1)C(=O)N1CCN(CC1)C(=O)/C=C/C1C=CC(Br)=CC=1


InChi: InChI=1S/C21H21BrN2O3/c1-27-19-9-5-17(6-10-19)21(26)24-14-12-23(13-15-24)20(25)11-4-16-2-7-18(22)8-3-16/h2-11H,12-15H2,1H3/b11-4+

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: Soluble in DMSO, not in water

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined.

HS Tariff Code: 382200


  1. Gessier F, Preuss I, Yin H, Rosenkilde MM, Laurent S, Endres R, Chen YA, Marsilje TH, Seuwen K, Nguyen DG, Sailer AW. Identification and characterization of small molecule modulators of the Epstein-Barr virus-induced gene 2 (EBI2) receptor. J Med Chem. 2014 Apr 24;57(8):3358-68. doi: 10.1021/jm4019355. Epub 2014 Apr 15. PubMed PMID: 24678947.

Products are for research use only. Not for human use.

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